This bug has been reported at launchpad.net, #163915 My notebook is a HP Pavilion 17-g164ng with an AMD A10-8780P APU. The sytem (Ubuntu 16.04.2, kernel 4.8.0, UEFI) does not work when not booted using workaround parameters: nomodeset: resolution 800x600 nomodeset xforcevesa: 1600x900 (optimal resolution) amd_iommu=off: "boot finished" sound within a minute, black screen, ssh login possible no parameter: no boot, no (remote) access, no dmesg, shut down by pressing off button for several seconds. I have reported this bug at launchpad.net on 2016-11-05. At that time I used 16.04.1, kernel 4.4.0. While booting, the screen was black, one flash, black backlight on-off-on. After more than three minutes, remote (ssh) access was possible, reboot by SysRQ B. Recently I tested upstream kernels. The results depend on the update-state of the installation. Using installed Version 16.04.2, kernel 4.8.0-36 for installation of the upstream kernel, booting without workaround parameter: "boot finished" sound after 45 sec., screen black, no further HDD activity, ssh login possible, SysRQ reaction. Using the actual, updated system, kernel 4.8.0-54 for installation of the upstream kernel, booting without workaround parameter: no "boot finished" sound, no remote login (ssh). Reboot/shutdown by SysRQ keys after about 3 minutes possible.
Tested upstream kernels 4.12-RC1 - RC5
I have set the importance to "high, critical". See comment #26 https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1639517
Have you tried iommu=soft kernel parameter? you should provide the log of a faulty boot (i.e. dmesg), showing the different boot modes. That would help the devs to see what actually happens
Created attachment 133775 [details] no workaround parameter no workaround parameter
Created attachment 133777 [details] kernel parameter iommu=soft Upstream kernel test - kernel 4.13-rc6 Installation, on which upstream kernel was installed: ubuntu 16.04.3, kernel4.10.0-32, updated 2017-08-22 1. booting without any workaround parameters 2. booting with kernel parameter iommu=soft boot-time 45sec (message sound), black screen remote-login (ssh) o.k.
Created attachment 133856 [details] no workaround parameter Upstream kernel test - kernel 4.13-rc7 Installation, on which upstream kernel was installed: ubuntu 16.04.3, kernel4.10.0-32, updated 2017-08-28 1. booting without any workaround parameters 2. booting with kernel parameter iommu=soft boot-time 45sec (message sound), black screen remote-login (ssh) o.k.
Created attachment 133857 [details] kernel 4.13-rc7 kernel parameter iommu=soft
Created attachment 133964 [details] kernel4.13 no workaround parameter
Created attachment 133965 [details] kernel4.13 iommu=soft
Upstream kernel test - kernel 4.13 Installation, on which upstream kernel was installed: ubuntu 16.04.3, kernel4.10.0-33, updated 2017-09-04 1. booting without any workaround parameters 2. booting with kernel parameter iommu=soft boot-time 45sec (message sound), black screen remote-login (ssh) o.k. dmesg -> attachments 133964, 133965
Created attachment 134295 [details] dmesg kernel 4.14-rc1
Created attachment 134296 [details] dmesg kernel 4.14-rc1 boot, no workaround parameter
Upstream kernel test - kernel 4.14-rc1 Installation, on which upstream kernel was installed: ubuntu 16.04.3, kernel4.10.0-33, updated 2017-09-17 1. booting without any workaround parameters 2. booting with kernel parameter iommu=soft boot-time 45sec (message sound), black screen remote-login (ssh) o.k.
Upstream kernel test - kernel 4.14-rc3 Installation, on which upstream kernel was installed: ubuntu 16.04.3, kernel4.10.0-33, updated 2017-09-04 kernel4.10.0-33, updated 2017-09-17 kernel4.10.0-35, updated 2017-10-02 1. booting without any workaround parameters 2. booting with kernel parameter iommu=soft 3. booting with workaround parameters 1. and 23.: boot-time +/- 40sec (message sound), black screen n o remote-login possible -> no dmesg 3.: Starting with any workaround parameter No net connection possible - neither cable nor wlan.
Created attachment 134726 [details] short hw-info of my HP Pavilion 17-g164ng T1318
Testing amdgpu-pro dkms from amd.com as suggested by xorg(Ubuntu) https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1639517/comments/30 Download: following the direct link to the drive on site https://support.amd.com/en-us/kb-articles/Pages/AMDGPU-PRO-Install.aspx 8.8.2017: amdgpu-pro-17.30-458935.tar.gz (for kernel 4.4 or 4.8) 27.08.2017: amdgpu-pro-17.30-465504.tar.gz (for Ubuntu 16.04.3) 1. Testing amdgpu-pro-17.30-458935 - installed kernel 4.8. Installing amdgpu-pro-17.30-458935 according link -and adding user to group video After installing: logout. Then - a Login wasn't possible: login started - and was finished a short time later with login-screen. Reboot without workaround parameters: boot process started: gray screen - flash - black screen - messages - splash screen - messages - read in line: maintenance or continue -> continue - error messages - stopped by SysReq B - reboot without workaround parameter - similar cycle. stopped by SysReq B. Now reboot was not possible. No item in EFI/esp. I tried to fix it using a live System and my "primary" installation Kubuntu - it didn't work. So I reinstalled my "primary" System Kubuntu. Now starting the test installation (workaround parameter nomodeset) failed - file system repair of system and data partition. I didn't repeat the test. I have no log files. 2017_09_15 - 2017_10_06 ======================= 2. Testing amdgpu-pro-17.30-465504 - installed kernel 4.10. I tested several times dkms in September and October A: Installing procedure Playing back a saved system partition, installing dkms according link- group video -> <actual user>. A few times I installed the AMD proprietary microcode driver. After installing reboot (workaround parameter) Login wasn't possible - a started login was finished with login screen. B.Test Boot without workaround parameter. optional kernel parameter "noplymouth boot_delay=<up to 400> As boot process was never finished, reboot using SysRq (-> C:) Starting my "primary" installation Kubuntu and run fsck of the dkms system partition, C. results The boot process was never finished; reboot either SysRq + b or SysRq + r|e|i|s|u|b. Results were sometimes reproduced - but it was not predictable when they were. Normally there was a never ending stream of messages incl. some error messages or a loop of always the same messages - all these tests were stopped by SysRQ. Some test runs ended with kernel panic - then a restart was only possible by "hard off" (several seconds "power off" button). The results of fsck also were not reproducible. Using SysRq + b : fsck shows error messages. Using SysRq + r|e|i|s|u|b: sometimes filesystem state was clean. Only in that case boot runs of that installation were comparable. During some test runs (kernel parameter "boot_delay") I took series of photos - but none of these series is complete (partly the messages on these photos are not readable). I don't attach any. A method how to redirect boot messages printed to the system console to a file I didn't find, respectively I didn't manage to run bootlogd - available in the repositories of Ubuntu; I couldn't find detailed tips, how to configurate bootlogd
Upstream kernel test - kernel 4.14-rc4 boot-time +/- 40sec (message sound), black screen no net connection - neither cable nor wlan. n o remote-login possible -> no dmesg
Upstream kernel test - kernel 4.14-rc5 boot-time +/- 40sec (message sound), black screen no net connection - neither cable nor wlan. n o (remote) login possible -> no dmesg
Upstream kernel test - kernel 4.14-rc7 Installation, on which upstream kernel was installed: ubuntu 16.04.3, kernel4.10.0-38, updated 2017-10-31 1. booting without any workaround parameters 2. booting with kernel parameter iommu=soft boot-time 45sec (message sound), black screen remote-login (ssh) o.k. attachments: dmesg_20171031_4.14-rc7.txt, dmesg_20171031-iommu-soft_4.14-rc7.text
Created attachment 135182 [details] boot without workaround parameter
Created attachment 135183 [details] dmesg, boot kernel parameter iommu=soft
Upstream kernel test - kernel 4.14-rc8 Installation, on which upstream kernel was installed: ubuntu 16.04.3, kernel4.10.0-38, updated 2017-11-06 1. booting without any workaround parameters 2. booting with kernel parameter iommu=soft boot-time 45sec (message sound), black screen remote-login (ssh) o.k. attachments: dmesg_4.14-rc8.text, dmesg-iommu_soft_4.14-rc8.text
Created attachment 135255 [details] dmesg upstream kernel 4.14-rc8, 2017-11-06
Created attachment 135256 [details] dmesg upstream kernel 4.14-rc8, 2017-11-06
Upstream kernel test - kernel 4.14 Installation, on which upstream kernel was installed: ubuntu 16.04.3, kernel4.10.0-38, updated 2017-11-14 1. booting without any workaround parameters 2. booting with kernel parameter iommu=soft boot-time 40sec (message sound), black screen remote-login (ssh) o.k. attachments: dmesg_20171114_4_14_.txt, dmesg_20171114_4_14_iommu_soft.txt
Created attachment 135447 [details] dmesg_20171114_4_14_iommu_soft.txt, boot without workaround
Created attachment 135448 [details] dmesg_20171114_4_14_iommu_soft.txt, kernel boot-parameter iommu=soft
Upstream kernel test - kernel 4.15-rc1 Installation, on which upstream kernel was installed: ubuntu 16.04.3, kernel4.10.0-40, updated 2017-11-27 1. booting without any workaround parameters 2. booting with kernel parameter iommu=soft boot-time 50sec (message sound), black screen remote-login (ssh) o.k. attachments: dmesg_20171127_4_15-rc1.txt, dmesg_20171127_4_15-rc1_iommu-soft.txt
Created attachment 135767 [details] dmesg_20171127_4_15-rc1.txt, boot without workaround
Created attachment 135768 [details] dmesg_20171127_4_15-rc1_iommu-soft.txt, boot kernel parameter iommu=soft
to the dev team: Since 18 month I'm using Ubuntu on my notebook with restricted functionality - esp graphic functions; without kernel parameter "nomodesetting" when booting, the screen remains black. I posted this situation in Nov 2016 - but up to now there is no solution available (https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1639517, bug #1639517; https://bugs.freedesktop.org/show_bug.cgi?id=101483). I ask you, whether in the foreseeable future there will be an driver available for "my" processor A10-8780P APU, R8 extreme edition 4C+8G,display Carrizo and display Topaz XT [Radeon R7 M260/M265]. Who can give me an answer?
Upstream kernel test - kernel 4.15-rc3 BIOS upgradedfrom F.41 to F.45 Installation, on which upstream kernel was installed: ubuntu 16.04.3, kernel 4.10.0-42, updated 2017-12-11 1. booting without any workaround parameters 2. booting with kernel parameter iommu=soft boot-time 50sec ->> Login-screen!!! Local login Now: led backlight brightness adjustable hdmi connection works systemsettings - display and monitor adjustable I'll set this bug as r e s o l v e d when the solution is in released ubuntu versions available attachments: dmesg_20171213_4_15-rc3.txt, dmesg_20171213_4_15-rc3_iommu_soft.txt
Created attachment 136158 [details] dmesg 4.15-rc3 boot witout additionel kernel parameter
Created attachment 136159 [details] dmesg 4.14-rc3 kernel parameter iommu=soft
(In reply to FFAB from comment #32) > I'll set this bug as r e s o l v e d when the solution is in released > ubuntu versions available This is an upstream bug tracker, not an Ubuntu one. If the problem is fixed with upstream 4.15-rc3, please resolve this report as fixed.
Today I set this bug to "resolved fixed", importance to "medium, normal". Afterward I checked some hw infos, e.g. in the result of "sudo lshw -short" I miss the following line: /0/100/3.1/0 display Topaz XT [Radeon R7 M260/M265] So I assume, at the moment graphic and the A10-8780P APU is not yet full supported.
Created attachment 136521 [details] 2018_01_02_dmesg_4.15-rc6.txt, booting without additional kernel parameter
Created attachment 136522 [details] 2018_01_02_dmesg_4.15-rc6_iommu_soft.txt, booting with kernel parameter iommu=soft
Upstream kernel test - kernel 4.15-rc6 Installation, on which upstream kernel was installed: ubuntu 16.04.3, kernel 4.10.0-42, updated 2018-01-02 1. booting without any workaround parameters 2. booting with kernel parameter iommu=soft boot-time 45sec ->> Login-screen!!! Local login Now: led backlight brightness adjustable hdmi connection works systemsettings - display and monitor adjustable "sudo lshw -short", missing line: /0/100/3.1/0 display Topaz XT [Radeon R7 M260/M265] attachments: 2018_01_02_dmesg_4.15-rc6.txt, 2018_01_02_dmesg_4.15-rc6_iommu_soft.txt
Upstream kernel test - kernel 4.16-rc1 Installation, on which upstream kernel was installed: ubuntu 16.04.3, kernel 4.13.0-32, updated 2018-02-12 1. booting without any workaround parameters 2. booting with kernel parameter iommu=soft boot-time 45sec login o.k. "sudo lshw -short", missing line: /0/100/3.1/0 display Topaz XT [Radeon R7 M260/M265] attachments: 2018_02_02_dmesg_4.16-rc1.txt, 2018_02_12_dmesg_4.16-rc1_iommu_soft.txt
Created attachment 137301 [details] booting without additional kernel parameter
Created attachment 137302 [details] dmesg, kernel 4-16-rc1, booting with kernelparameter iommu=soft
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